我想以X年Y个月Z天的形式计算年龄.这是我的代码
NSString *dateString = @"15-Sep-1997";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"dd-MMM-yyyy"];
NSDate *PrevDate = [dateFormatter dateFromString:dateString];
NSDate *today = [NSDate date];
NSLog(@"Prev date = %@", PrevDate);
NSLog(@"today =%@", today);
NSInteger years;
NSInteger months;
NSInteger days;
NSCalendar *calendar = [NSCalendar currentCalendar];
unsigned unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit;
NSDateComponents *dateComponentsNow = [calendar components:unitFlags fromDate:today];
NSDateComponents *dateComponentsBirth = [calendar components:unitFlags fromDate:PrevDate];
if (([dateComponentsNow month] < [dateComponentsBirth month]) ||
(([dateComponentsNow month] == [dateComponentsBirth month]) && ([dateComponentsNow day] < [dateComponentsBirth day]))) { …